8th grade Science Vocabulary

Question 1

Type of observation made with scientific tools, involves number

Accepted Answer

Quantitative

Question 2

The materials present BEFORE a chemical reaction takes place

Accepted Answer

Reactant

Question 3

Broken pieces of rock being picked up and moved by wind, water, and ice

Accepted Answer

Erosion

Question 4

The law that states the oldest rock layers are on the bottom

Accepted Answer

Law of Superposition

Question 5

occur when a substance combines with another to form a new substance.

Accepted Answer

Chemical change

Question 6

Rock that is formed when molten rock cools

Accepted Answer

Igneous rock

Question 7

scientific experimentation is the experimental element which is constant and unchanged

Accepted Answer

Control

Question 8

What is observed in the experiment, the data we collect, the effect, on Y axis of of a graph

Accepted Answer

Dependent variable

Question 9

The type of rock that is made by the deposition of rock pieces that undergo intense pressure

Accepted Answer

Sedimentary rock

Question 10

The movement of the Earth’s continental plates. Theory supported by rock and fossil evidence

Accepted Answer

Continental drift

Question 11

An educated guess of what will happen in an experiment

Accepted Answer

Hypothesis

Question 12

Theory that the earth is divided into several pieces that move due to convection currents

Accepted Answer

Plate tectonics

Question 13

is the process by which water changes from a liquid to a gas or vapor.

Accepted Answer

Vaporization

Question 14

process in which sediments, soil and rocks are dropped onto a landform or land mass

Accepted Answer

Deposition

Question 15

changes affecting the form/state of matter of a substance, but not its chemical composition.

Accepted Answer

Physical change

Question 16

is the breaking down of rocks, soil and minerals.

Accepted Answer

Weathering

Question 17

molten rock material under the Earth's crust

Accepted Answer

Magma

Question 18

An observation made with our senses: sight, smell, touch, taste, and hearing.

Accepted Answer

Qualitative

Question 19

Rock formed with extreme heat and pressure

Accepted Answer

Metamorphic rock

Question 20

What is formed AFTER the the chemical reaction

Accepted Answer

Product

Question 21

is the molten rock expelled by a volcano during an eruption

Accepted Answer

Lava

Question 22

Matter cannot be created or destroyed, it only changes form

Accepted Answer

Law of conservation of mass

Question 23

fossil remains of a creature that lived during a specific time used to identify or date rock

Accepted Answer

Index fossil

Question 24

variable that is deliberately changed by the scientist, it's the cause

Accepted Answer

Independent variable

Question 25

change of the physical state of matter from a gas phase into a liquid phase.

Accepted Answer

Condensation

8th grade Science Vocabulary

Questions 25

8th grade Science Vocabulary

Questions 25